Authors
Oľga Orosová
Pavol Jozef Šafárik University in Košice
Jozef Benka
Pavol Jozef Šafárik University in Košice
Guido Van Hal
University of Antwerp, Belgium
Vihra Naydenova
Sofia University “St. Kliment Ohridski”, Bulgaria
Andrea Lukács
University of Miskolc, Hungary
Janina Petkevičienė
Lithuanian University of Health Sciences, Lithuania